Fountain-pen



H. D. AND P. x. GROSSMAN.

FOUNTAIN PEN.

vIZ

. l gnvemow HD. Gfman.. P X Grossman.

@nonna UNITED STATES HARRY D. GROSSMAN AND PAUL X.

GROSSMAN, OF CHICAGO, ILLINOIS.

FOUNTAIN-PEN.

Application filed March 9,

To all whom it may concern.

Be it known that we, HARRY D. Grnoss MAN and PAUL X. GRossMAN, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Fountain-Pens, of which the following is a specification.

This invention relates to fountain pens having a barrel provided with two separate ink reservoirs, and a pen point at each end of the barrel to one of which the ink from one of the reservoirs feeds, whereas the other reservoir feeds to the other pen point.

The invention has for its object to provide a novel and improved means for controlling the iow from the respective reservoirs, whereby the feed from either one or both reservoirs may be closed to prevent the escape of ink when' the pen is not in use and being carried in the pocket.

In order that the invention may be better understood, reference is had to the accompanying drawing forming a part of this specification, and in said drawing,

Figure 1 is an elevation of the pen, partly in section; Fig. 2 is a central longitudinal section of the ink feed, and Figs. 3 and 4 are cross sections on the lines 3--3 and 4.4, respectively of Fig. 2.

Referring specifically to the drawing, 5 denotes the usual tubular barrel of the pen,

the same being divided intermediate its` ends, by a partition 6, into two separate ink compartments or reservoirs 7 and 8, respectively. Each end of the barrel is itted with a pen point and an inkfeed thereto, so that either end of the device may be used for writing, one end receiving ink from one reservoir and the other end from the other reservoir. As the ink feeding means are alike, a description of one will suffice forl both.

The outer end of each reservoir is threaded externally to take a screw cap 9 for covering the writing end of the pen when it is not in use. This cap is shown dotted only as its function is well understood. The outer end of the reservoir is also internally threaded to seat and hold a ring 10. A tubular neck 11 for holding a feed bar 12 and the pen point 13, is separate from the ring 10, a disk 14 being interposed between Specification of Letters Patent.

Patented Dec. 14, 1920.

1920. serial No. 364,435.

the ring and the rear end of the neck. Back of the disk 14, and tightly fitting in the ring 10, is a plug 15. The plug 15, and the disk 14 and the feed bar 12 are held together by an aXial screw 16, the disk being loose on the screw so that it may be rotated.

The plug 15 has a nick 17 in its periphery, the same forming an ink feed channel which is in alinement with an ink feed channel 18 in the surface of the feed bar 12. As the parts 15 and 12 are in fixed relation to each other, the channels 17 and 18 are always in alineinent. In the disk 14 is an` aperture '19 forming a port to establish communication between the channels 17 and 18 when in registry therewith. The disk 14 being rotatable on the screw 16, the port 19 may be placed into and out of registry with the channels 17 and 18, and when out of registry, the flow of ink to the channel 18 is cut off, so that there is now no danger of the ink fiowing from the reservoir and escaping from the feed bar and the pen point to soil the clothes of the person carryino the pen.

rrIhe exterior of the disk 14 and the end of the barrel may be provided with indicia such as marks 20, to indicate the shut ofi' and feed positions of the disk.

The structure by which the iow of ink is controlled is very simple, and the parts are few and capable of ready assembly. The barrel 5 is made in two sections screwed at their inner ends over a plug which forms the partition 6. Differently colored inks may be placed in the reservoirs 7 and 8 to enable the pen to be used for writing in different colors, the change from one color to the other being made by merely reversing the writing end of the pen.

IVe claim:

1. In a fountain pen, a barrel forming an ink reservoir, a ring fastened in the outer end of the barrel, a pluo' secured in the ring, a feed bar located aiead ofy the ring and the plug and secured thereto, the plug and the feed bar having alined ink-feed channels, and a rotatable disk positioned between the ring and its plugl and the rear end of the feed bar, said disk having a port adapted to be brought into and out of registry with the ink feed channels.

2. In a fountain pen, a barrel forming an ink reservoir, a, closure for the outer end of to be brought into and out of registry with the barrel, a feed bar carried by the closure the ink-feed channels.

and positioned ahead of the same,the e10- In testimony whereof We afix our Signa- 10 sure and the feed bar having alined inktures.

feed channels, and a, rotatable member posiv tioned between the closure and the rear end Y HARRY D. GROSSMAN. of the feed bar, and'hzwing a port adapted PAUL X.GROSSMAN. 

